What will be the output of the program?

public class ThreadTest extends Thread 
{ 
    public void run() 
    { 
        System.out.println("In run"); 
        yield(); 
        System.out.println("Leaving run"); 
    } 
    public static void main(String []argv) 
    { 
        (new ThreadTest()).start(); 
    } 
}

The Thread.yield() method suggests to the thread scheduler that the current thread is willing to yield its current use of processor, but the scheduler is free to ignore this suggestion. In this simple single-threaded program, yield() has no visible effect, and both statements execute normally, printing 'In run' followed by 'Leaving run'.